C++ please

Write a program that contains three functions:

1. A function that has an integer as a parameter and returns a pointer to square array of integers (i.e. both dimensions should be equal). The function should allocate storage from the heap and randomly ll that dynamically allocated array.

2. A function that uses the algorithm described above to compute the matrix square of an array. It should be passed a pointer to an array of integers and an integer dening the dimensions of the array. It should return a double pointer to the array containing the product. This is the standard matrix-multiply algorithm that can be found throughout the web.

3. A function that uses threads to compute the matrix square of an array. This function should have the same parameters and return values of the previous function The main() function in your program needs to use these functions to compute the square of matrices with 100, 500, 1000, 5000, and 10000 integers.